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} GQ-H. POX; Breech-Loading Fire-Arm. No.196,748.

Patented Nov. 6, I877.

N-FETERS, PHOTO-LITHQGRAPNEE WASHINGTON. D O,

chore-E 11. Fox, 0 ieosror, 'MASSAGHUSETTS- eh! E :hpe ifiee i n v fenmle herb h L t er le t N 11196 2748, de ho mhe 1. 7: epr eeti nfil d To all whom it may Oc oa-mt.-

Be it known tha l, GEORGE H,- x, f

Loading Guns, of W11 sidewise vibration from a point of vibration r -os i lati n W ich is outside of the outl of the barrels The said. barrels, insteedlo f being gu ed in these m v ments byen ual rivet eeeted at sueh po t, are .gmdedendeohtrolledby pins or studsxyorh-ing in grooyesfi concentric with a -,center outside .of the out- 2 7 li e 0 h gun, Wh h m y b termed eh imegri-neryaee t r- The drawings ,alccornpenyh g this specification represent, Figure l, longitudinal section of so much of a fire-arm as :is heeessaryf t show th eppli tioh hi my mpr re heht Fig- 2 is re pl n of the "l wer plate or flame; upon which the barrels are supported, and F 'g- 312m und r id riewlof th sem .i iiei- 4 is an und r side View of th hea part of the herr l end .e teehmentsilh hese id-l wles Se t or breech o th 'lhe b rels, 1 C, leseIibe 7' .estudzor screw, .17, 1 d and Whose heads l p ath e nd ere iide eh screws mto e ides.

sweeps the .s

say

part, to prevent 1th throwing up [of th s eLe pledediT-h serer =er it H neeteetelemehtes it se ses he ehehle the I h the two barrelsgof eshot- 5 gen are shown .ait'A A ,tvhile brazed or :,others seemed to fleeund r ree pes e; plate, I), flat on its under side to rest npontheupper surface 1 of the'frem ,3, th r l-1 s he 1 being h wh in m me s ell the bes ple d by 5 pl ,ozf zeu redsl t, ei, reeted'in th said hese-plete l1, tl-iis slot being a segment of a circle struck; 1t ii emee ter cutsid o th hem -of the e l-h: s h lot an enlarg m nt, 9, to permit of eseehe hi the s. of the screw. when i is desired to ide'teeh th hernels :from th steek- The heedie th serervidsemes;

d endsof the herrels when th ee tli ee equ va eet i he y i to rav freely n it hann l, and t p rmit of the requisite slip gnoyen ent between the barrels and stock.

0 in the draw ng r pr ent e err-w d fin or guide-plate, disposed iipon the top of the base-plate b, and having its side edges under- .cntor dovetailed to cling to a similarly-formed the said plate O and groove D being disposed tangentiel to the as of the frame, at such an angl and segment o be e rele as to adapt t mselves to the w r t g oveme o the barrels.

he fin O is forme hpe th nr r e 0 e .eyhhdrieel stud or l i-rot, E; Whieh xtends means whi h the he my be tur 1 11 11 its center to find its true position with respect to the groove D and the barrels. It will be evident that if the positionof the gfin C be var d e g hld ne y o t hes plet the rear ends .of the barrels will be caused to ep;- pr eeh e reeedeir m th r eQi -seet ve the re of th e l-H, en the 41 1 m y thee h me e leeee of emrensetine f =91 hei up the wear between such seetgend :baLi els h uldeny-eeeur, ils Welle to r ng rels into their proper position in ma l king gt new gun. v

er ehfi-n the p n in place 1 .ene elep its she kfll h @tiohad block or pair of recessed blocks, longside e e low red end th ethe haisea, the e he in eh hr etieh, vice t rse, the en bling e h rf e J nt hetwe h th her rels en hx eeh to be insur d .et e 5 So, too, infitting a new; er lQos h e c m harre1 m hrtehl'ee egei the hreeeh, th h i s pesiati n, heme y, hen theseriewz eneeene h hen s; eh feetl-yec iueted- .Flhe fibre fe ee h is e ,elideplete, h

sm t D, ut n th und s d e the rlete 1 do ward thr ug the ba e-p ate, end by @G igidly and see relye sore s l :l ere loosened ,;end one block,

h -s r ws l 1 recessed to receive the head of the shells, and, when the gun is in firing position, extends into a recess formed in the rear end of the barrels, said slide-plate being supported on the rear end of a rod, n, which plays in a bore, 0, created longitudinally in the plate I). In

order that the movement of the barrels, as'

they recede from the breech, may force the extractor m outward to remove the shell in each barrel, I employ a slideplate, p, which is let into a recess, q, formed in the lower part of the plate I), and having on its under side a spur, 1*, which enters a right-angular orifice or slot, 8, formed in the plate I), one part (viz., t) of such slot being practically lengthwise of the said plate and the other portion, u, being at right angles thereto. The forward end of the extractor-rod n is let into the slide-plate p, and it will be seen that as the barrels swing to one side, in the act of unclosing the breech, the portion a of the slot 8, acting upon the stud r, forces the slide-plate p, and with it the extractor-rod n and plate m, backward, also, to such an extent as to start the cartridgeshell from the barrel. The barrels are swung to one side, as stated, until the side 11 of the portion t of the slot 8 abuts against the spur 0', when further movement of the barrels is arrested by such spur.

It will be seen, when the slide-plate p is in the position last named that is, with the extractor withdrawn and the barrels turned full to one side-that the spur constitutes, as stated, a stop to any further movement of the barrels, and serves to prevent accidental disengagement of the barrels and stock, the rising of the said plate and the disengagement of its spur being prevented by a lip, .00, formed upon the rear boundary of the recess or slot q, it being understood that when the extractor is pushed home the said plate 1) is pushed forward beyond this lip.

When it becomes desirable to disengage the barrels from the stock, the former are first swung to one side to the fullest extent, and the gun then turned bottom upward, with the barrels in the left hand. The extractor is now pushed inward, which removes the slide-plate p from engagement with the lip 00, and the said plate is lowered by the thumb of the left hand until the spur r retreats from the slot 8, when the stock may be disengaged from the barrels, as the enlargement of the slot 9, as before stated, permits of passage of the head 0 of the screw (1. 1

To enable this depression of the slide-plate p to be easily and expeditiously accomplished, I extend the extractor-rod through a pin, 4, which is disposed within an orifice, 2, created. in the plate I), and by pressing upon which pin with the thumb of the left hand the rod and plate are lowered.

To engage the barrels and stock, the two are turned bottom upward, the head 0 of the screw d passed into the enlargement g of the slot 6, the stock pressed down upon the barrel-plate b to crowd theplate 12 downward, and the barrel swung into alignment with the stock, the spur rising upward into the slot 8, while to give proper direction to the swinging movements of the barrels, until the shank of the screw (1 passes into the slot 0, I employ a screw or pin, a, which depends from the plate I) and enters the outer end I) of the said slot.

To prevent rising of the rear end of the barrel-s when the cartridge explodes, I form upon the lower rear corner of the plate I) a small lip, c, which takes into a corresponding recess, (1, cut in the breech-block, while to lock the said barrels in firing position I employ a spring bolt, 0, let into a socket, f, created in the rear end of the barrels, as shown in Fig. 1 of the drawings, the rear end of this bolt protruding a short distance, and entering a coinciding socket, 9, created in the breech-seat c.

A puslrpin, h, retracted by a spring, '5, is disposed in the socket g, and, when pushed forward until its front end is flush with the front face of the recoil-seat 0, serves to remove the bolt from said socket g, and release the barrels.

By removing the dovetailed guide or fin and its groove from the corner at the intersection of the recoil-seat c and plate I), where they were located in my previous patent, I

. greatly strengthen the p arts, an d obviate what has been considered by some a serious objcc tion. I also obviate any liability of the hand of the user being caught by the fin (l as the barrels are returned to position.

One important feature in my present improvements relates to the recoil-seat c with re- I 'one side of the head of the cartridge-shells takes place. Consequently the heads do not bearfairlyupon the recoil-seat, and such shells are forced out of shape, and in some cases the heads blow off without the cause being apparent.

By this form of the recoil-seat a perfect fit of the rim of the cartridge-head in the circular groove of the cartridge-chamber is at all times insured. For the same reason the cartridge-case retains its original shape, and fracture is impossible.

In this gun a compound movement of the barrels with respect to the breech takes placethat is to say, a lateral vibratory movement and a longitudinal slip. As laid down in my patent before named, this movement of the barrels is described as a vibratory one in the arc of a circle struck from an imaginary center outside of the stock or frame. This is not literally essential, as the gist and value of my invention will be seen to consist in the construction by which I am enabled to readily and expeditiously separate the stock and barrels without the removal of screws, &c., or the use of an instrument, and the path of movement of the barrels to accomplish this may vary somewhat from that described.

In the manipulation of the gun in loading and firing, &c., these movements of the barrel or barrels, in the act of closing or unclosing the breech, are guided or effected by an obliquelydisposed segmental rib or fin in the one traversing a coinciding groove or channel in the other, as stated, while a screw or pin in one, working a curved slot in the other, aids in steadying and giving direction to thesemovements of the barrels, and constitutes, practically, a pivot for the necessary swinging movements of such barrels, and allows of the requisite longitudinal slip between them and the stock, a proper stop being employed to determine the length of such movement and prevent separation of the two.

Were this compound swinging and slip movement of the barrels upon the frame or stock the only one to be accomplished, the rib and groove, and the guiding pin or stop, would suffice; but it becomes important to be able to detach or separate the barrels and stock, andif some means were not provided for compelling the barrels to move in the arc of a circle immediately after the rib and groove separate in the act of dismembering the gun, the two would not coincide when the barrels and stock were put together.

This important office is filled, in my patented gun before named, by the pin g, and in my present gun by the screw or stud a.

Though I have confined the description of the construction of my gun to a pair of barrels operating with a stock or frame, it is hardly necessary to observe that I do not confine myself to two barrels, as the operations of the gun, and the advantages to be derived from my invention, are entirely independent of the number of barrels.

I claiml. The fin or guide 0, in combination with the plate b, forming part of or attached to the barrels, and provided with groove D, substantially as herein shown and explained, whereby such fin constitutes a means of compensating for wear between the barrels and breech, of preventing throwing forward of the barrels on explosion of the charge, and of enabling the barrels, in fitting new guns, to find their true position'with respect to the recoil-seat of the breech, the whole being essentially as and for purposes stated.

2. The dovetailed guide or fin C, swiveledto and longitudinally adjustable in the plate I), essentially as and for purposes stated.

3. The combination of the dovetailed guide 0 and its pivot or shank E with the blocks 42 i and j j, the latter being inclosed within the ledges 7c k, and the whole operating substantially as andfor purposes stated.

4. The locking-bolt e, as arranged within the barrels, and operating in connection with a push-pin in the breech a, substantially as and for purposes stated.

5. The pin a, in combination and operating with the stud or screw d, to guide the barrels to the fin O, substantially as and for purposes stated.

-6. The combination of the extractor m with the slide-plate p and stud y, substantially as explained, so that when the extractor is partially or Wholly withdrawn such plate and pin may be removed, substantially as and for purposes stated.

Witnesses: GEO. H. FOX.

J OHN H. CARTER, W. E. BoARDMAN, F. CURTIs. 

